Tag: M.W:100-200

41034-52-0, Name is 1,2,3,4-Tetrahydro-isoquinoline-1-carboxylic acid, belongs to isoquinoline compound, is a common compound. 41034-52-0In an article, authors is Ardill, Harriet, once mentioned the new application about 41034-52-0.

X=Y-ZH SYSTEMS AS POTENTIAL 1,3-DIPOLES. PART 19. INTRAMOLECULAR CYCLOADDITIONS OF NON-STABILISED AZOMETHINE YLIDES GENERATED VIA THE DECARBOXYLATIVE ROUTE FROM alpha-AMINO ACIDS.

Heating a range of acyclic and cyclic secondary alpha-amino acids with aryl aldehydes containing a proximate terminal alkene or alkyne results in consecutive condensation and decarboxylation, followed by intramolecular cycloaddition of the resultant non-stabilised azomethine ylides.Evidence is produced for syn-anti dipole equilibration and it is found that intramolecular cycloadditions to a terminal alkyne involve only the anti-dipole and proceed via an exotransition state to give a single cycloadduct.In contrast, intramolecular cycloaddition to a terminal alkene involves both anti- and syn-dipoles, with trapping of the former being slightly energetically preferred, resulting in mixtures of two stereoisomeric cycloadducts.Intramolecular cycloadditions of terminal alkenes to anti-dipoles proceed via exo-transition states whilst analogous reactions of the syn-dipole involve endo-transition states.

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An article , which mentions 486-73-7, molecular formula is C10H7NO2. The compound – Isoquinoline-1-carboxylic acid played an important role in people’s production and life., 486-73-7

Synthesis and biological evaluation of quinoline-imidazole hybrids as potent telomerase inhibitors: A promising class of antitumor agents

A series of 1-isoquinoline-2-styryl-5-nitroimidazole derivatives has been synthesized and screened for telomerase inhibitory as well as antiproliferative properties on four variant cancer cell lines (U251, Hela, HepG-2 and A549). The bioassay results showed that most of the designed compounds exhibited moderate to potent in vitro inhibitory activity in the enzymatic and cellular assays, of which compounds 3u and 3v were revealed the most potent telomerase inhibitors, with IC50 values of 0.98 muM and 1.92 muM, respectively, compared to staurosporine. Docking simulation was performed to position compounds 3u and 3v into the telomerase active site to determine the probable binding pose. Twenty three compounds were scrutinized by the CoMFA and CoMSIA techniques of 3D Quantitative Structure-Activity Relationship (QSAR). These new findings along with molecular docking observations could provide important information that compounds 3u and 3v with potent inhibitory activity in tumor growth inhibition may be potential anticancer agents. This journal is the Partner Organisations 2014.

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Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics.In a document type is Article, the author is Farag, Ahmad M. and a compound is mentioned, 3382-18-1, 6,7-Dimethoxy-3,4-dihydroisoquinoline, introducing its new discovery. 3382-18-1

1,3-DIPOLAR CYCLOADDITION SYNTHESES OF 3,3′-BI(2-PYRAZOLINES, 3,3′-BIPYRAZOLES AND 3,3′-BI(1,2,4-TRIAZOLES)

3.3′-bi(2-pyrazolines, 4,6 and 8, and 3,3′-bi(1,2,4-triazolo<3,4-a>isoquinolines), 13-16, have been prepared in good yields via 1,3-dipolar cycloaddition reactions of bis(arylnitrilimines), 3, with acrylonitrile, acrylamide, benzalacetophenone and 3,4-dihydriisoquinolines, 12, respectively. 3,3′-bipyrazoles 10 and 11 have been prepared in excellent yields by reaction of 3 with dibenzoylmethane and benzoylacetonitrile, respectively.The regiochemistry of the cycloadducts is discussed.

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An article , which mentions 1125-80-0, molecular formula is C10H9N. The compound – 3-Methylisoquinoline played an important role in people’s production and life., 1125-80-0

N-Acylazinium Salts: A New Source of Iminium Ions for Ugi-Type Processes

A multicomponent reaction involving the interaction of azines (quinolines, isoquinolines, and phenanthridine) with activating agents (chloroformates, acid halides, and sulfonyl halides), isocyanides, and water is described. The products of this process, alpha-carbamoylated-1,2-dihydroazines, are the result of the addition of the isocyanide partner to the N-acylazinium salt formed in situ. This represents a new source of iminium ion equivalents for Ugi-type reactions.

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Because a catalyst decreases the height of the energy barrier, 3382-18-1, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.3382-18-1, Name is 6,7-Dimethoxy-3,4-dihydroisoquinoline, molecular formula is C11H13NO2. In a article£¬once mentioned of 3382-18-1

Formal [3 + 2] cycloaddition of azomethine ylides generated in situ with unactivated cyclic imines: A facile approach to tricyclic imidazolines derivatives

A simple and efficient method for the synthesis of tricyclic imidazolines derivatives via [3 + 2] 1,3-dipolar cycloaddition between nonstabilized azomethine ylide generated in situ with unactivated cyclic imines is reported here. The method provided easy and mild access to various fused tricyclic hexahydroimidazo[5,1-a]isoquinolines in excellent yields (up to 96%). This protocol is simple and easy to handle.

A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. 3382-18-1, In my other articles, you can also check out more blogs about 3382-18-1

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The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.1532-72-5, Name is Isoquinoline N-Oxide, molecular formula is C9H7NO, 1532-72-5. In a Article, authors is Stefaniak, Lech£¬once mentioned of 1532-72-5

14 NMR STUDIES OF SOME AZINE N-OXIDES. SUBSTITUENT EFFECTS

14N nuclear screening data are reported for a number of variously substituted azine N-oxides.Examples are presented which contain as the parent polyazine structure, pyridine, quinoline and isoquinoline.The nitrogen N-oxide screening trends are discussed in terms of normal charge density variations produced by the substituents considered.The influence of potential hydrogen-bonding substituents in the 2-position on the N-oxide screening is noted.Screning data for some polyazines show that the presence of a nitrogen atom in the ring not containing the N-oxide function is only significant when the two nitrogens are in the peri positions.When all of the nitrogen nuclei are present in the same polyazine ring the effects of substituents on the N-oxide screening are analogous to those observed for the corresponding quinoline and isoquinoline N-oxides

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.1532-72-5. In my other articles, you can also check out more blogs about 1532-72-5

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22960-16-3, Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 22960-16-3, Name is Isoquinoline-4-carbaldehyde, molecular formula is C10H7NO. In a Article, authors is Muszak, Damian£¬once mentioned of 22960-16-3

The synthesis and characterization of tetramic acid derivatives as Mdm2-p53 inhibitors

We present syntheses, prediction of tautomer forms and activities of the second generation of the Mdm2-p53 inhibitors that are based on the tetramic acid scaffold. The inhibitors do not contain 6-chloroindole. Binding of these compounds to Mdm2 was checked by two orthogonal methods: the fluorescence polarization and the 1H-15N HSQC NMR titration experiments. We discovered that the 3-phenylthio-substituted tetramic acid derivatives exist in solution solely in their enol forms which is in contrast to the similar 3-aliphatic substituted derivatives. The inhibitory (Ki) and dissociation (KD) constants are in low micromolar ranges with the best binding compound 9a having KD = 2.9 muM. Furthermore, our data show that the compounds indeed bind to the p53-binding pocket of Mdm2 and do not cause dimerization of Mdm2. The current work provides solid base for further rational design of the Mdm2/p53 inhibitors.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. 22960-16-3, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 22960-16-3, in my other articles.

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The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.1532-72-5, Name is Isoquinoline N-Oxide, molecular formula is C9H7NO, 1532-72-5. In a Article, authors is Su, Yuan£¬once mentioned of 1532-72-5

In Situ Generated HypoIodite Activator for the C2 Sulfonylation of Heteroaromatic N-oxides

A mild approach for direct C2 sulfonylation of heteroaromatic N-oxides with sulfonyl hydrazides affording 2-sulfonyl quinolines/pyridines has been developed. A variety of heteroaromatic N-oxides and sulfonyl hydrazides participate effectively in this transformation which uses hypoiodites (generated in situ from NaI and TBHP) as a means of substrate activators. In this reaction, the N-oxide plays a dual role, acting as a traceless directing group as well as a source of oxygen atom.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.1532-72-5. In my other articles, you can also check out more blogs about 1532-72-5

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Catalysts function by providing an alternate reaction mechanism that has a lower activation energy than would be found in the absence of the catalyst. In some cases, the catalyzed mechanism may include additional steps.In a article, 23687-27-6, molcular formula is C9H8N2, introducing its new discovery. 23687-27-6

CHEMICAL COMPOUNDS

This invention relates to biaryl ether derivatives of formula (I), wherein R1, R3, R4, X, W, Y and m are defined in the description, and to compositions containing them and the uses of such derivatives. The compounds of the present invention bind to the enzyme reverse transcriptase and are modulators, especially inhibitors thereof.

Because enzymes can increase reaction rates by enormous factors and tend to be very specific, 23687-27-6, typically producing only a single product in quantitative yield, they are the focus of active research.you can also check out more blogs about 23687-27-6

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34846-65-6, One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time.In a article, authors is Mahmoud, Sahar, mentioned the application of 34846-65-6, Name is Isoquinoline-4-carbonitrile, molecular formula is C10H6N2

1,2-Dihydroisoquinoline-N-acetic acid derivatives as new carriers for brain-specific delivery II: Delivery of phenethylamine as model drug

N-alkyloxycarbonylmethyl-1,2-dihydroisoquinolin-4-carboxylic acid derivatives 7 a-c were synthesized as new carriers for brain specific delivery. The design of the carrier systems are based on sequential hydrolysis at the acetic acid ester group linked to dihydroisoquinoline nitrogen followed by ring oxidation and formation of quaternary isoquinolinium derivatives which are then hydrolyzed to release the drug. Once the carrier system is administered, a sequential enzymatic process will take place resulting in significant increase in its rate of oxidation, the key factor in brain specific delivery. The chemical stability of the synthesized carrier system was investigated in aqueous buffer solutions and ferricyanide reagent and proofed to be quite stable against hydration and oxidation during formulation and storage. Furthermore, enzymatic stability was also investigated in 80% human plasma and 20% rabbit brain homogenate. Both oxidation and hydrolysis were found to take place; however, hydrolysis was the major route. In vivo distribution of the ethyl ester derivative 7 b was studied in rats and showed that the concentration of the quaternary product is increasing in the brain and cleared from blood with time.

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